Vibration machine



FIG. 1 is a perspective view of a vibration machine showing my newdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The environmental elements of the disclosure shown in broken lines formno part of the claimed design.

The ornamental design for a vibration machine, as shown and described.